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Updated: Sep 27, 2025
Iris Fixation via External Pentagram Suturing
Published on: May 5, 2022
18-month results of double-fanged 5-0 polypropylene suture transscleral bag fixation in subluxated cataracts
Sergio Canabrava1, Gustavo Rodrigues1, Natan Namem Halabi1
1Cataract Department, Santa Casa de Misericórdia de Belo Horizonte, Belo Horizonte, MG, Brazil.
Purpose:
To evaluate the stability and efficacy of the double-flanged 5-0 polypropylene suture to fixate subluxated cataracts at 18 months and the possible complications of this new technique.
Methods:
This technique uses a 5-0 polypropylene monofilament to create two flanges with a thermocautery, for fixation of a capsular tension segment to the sclera to fix the subluxated capsular bag. This technique was implemented in 17 eyes requiring intraocular lens implantation in a setting of zonular dialysis due to trauma, Marfan syndrome, microspherophakia, idiopathic disease, and post-phacoemulsification status.
Results:
Follow-up of the patients occurred at 18 months. Best-corrected visual acuity improved significantly from 0.85 to 0.39 (logMAR), whereas the spherical and cylindrical refractive errors and intraocular pressure remained stable from preoperation. No suture photodegradation or pseudophacodonesis were detected.
Conclusion:
The double-flanged 5-0 polypropylene suture transscleral bag fixation technique has shown favorable long-term outcomes in terms of bag intraocular lens/complex fixation and stability. In eyes with zonular weakness or dialysis, this technique appears to be a safe and knotless option for cataract surgery.
